What size tyres are you running on your D4 with 18' rims?

[Sven94]

New tyres needed.. I off road alot and have come from a Land Cruiser. No problems with rubbing in the LC even with 35" tyres. Still trying to learn about the D4

looks like these are the biggest that could fit
31.5" 285/60/18 +36mm OD
31.6" 265/65/18 +39mm OD
32.1" 275/65/18 +52mm OD
32.6" 265/70/18 +65mm OD
32.6" 285/65/18 +65mm OD

any real world advise on what you run?
is it the height or the width the problem with rubbing?
not looking to trim or cut stuff.
I have IID so can set a higher standard height if required.
LT AT tyres only, eg Nitto Ridge Grappler, Faulken AT3W, BFG KO2, Cooper STmax,

[rocket rod]

First check what you can legally put on with the state authority. Going too big could be illegal. Have you seen this spreadsheet?
150116

[TuffRR]

275/65 is the tallest you can feasibly go. I have these and they do rub a bit, even after mods. The D4 running gear is not made for anything bigger anyway and there aren't upgrade options.

[Sven94]

First check what you can legally put on with the state authority. Going too big could be illegal. Have you seen this spreadsheet?
150116

thanks for the tyre file

[gavinwibrow]

275/65 is the tallest you can feasibly go. I have these and they do rub a bit, even after mods. The D4 running gear is not made for anything bigger anyway and there aren't upgrade options.

My new to me but old D4 acquisition (with LLAMS), is shod with 285/60R18 = 31.5 diameter. Not been off road yet, but fine around town.

275/65R18 is I think 32.1 diameter

[discorevy]

My new to me but old D4 acquisition (with LLAMS), is shod with 285/60R18 = 31.5 diameter. Not been off road yet, but fine around town.

275/65R18 is I think 32.1 diameter


When you get a chance , check speedo with gps to make sure the speedo has been adjusted in the vehicles car config files to suit the bigger tyre size, otherwise you might pick up a fine , if it hasn't your speedo will under read by around 3% .
cheers

[dirvine]

I have 265/65/18 and my speedo is 100% accurate at 100kph WITHOUT any adjustments to the config files. What is now inaccurate is the odometer as it shows let kn]ms than what has been traveled. Rather have an accurate speedo than odometer!!!

[gavinwibrow]

When you get a chance , check speedo with gps to make sure the speedo has been adjusted in the vehicles car config files to suit the bigger tyre size, otherwise you might pick up a fine , if it hasn't your speedo will under read by around 3% .
cheers

Thanks Craig - has been on my mind and will check it out en route to Nirvana next week!

[Dagilmo]

The last three sets have been 285/60/18. I like the size and will continue with it.

However, the first two- Dunlop AT22 and Bridgestone A/T 697s- had only limited rubbing on the guards when articulated. But the current set- Toyo Open Country R/Ts rub a bit more. I've noted a rub on the cable split tube on the inner guard of the front left.

I think two reasons:

1. The Dunlops and B/Stones were second hand (wanted to try the size before purchasing, NB: usually lots of 285/60/18 Dunlop AT22's on Gumtree from LC 200 people ditching for upgrades, I got 6 tyres with 50-60% left for $150.00 the lot) so they had worn some what.

2. The Toyos have a very square tread with aggressive shoulder lugs. Which is the area doing the rubbing on the cable.

Some Comments: The 285/60/18 go well off road. My fuel consumption has increased from the originals. The size should be reasonably available as is a LC standard size. The speedo is fractionally slow (not sure which way you say it) at 100 on the dial I'm doing 102-103.

[rick130]

Quick Q, how commonly available is the 265/65-18?

It seens like a really nice compromise in aspect ratio/diameter but from a casual look the 265/60-18 is on every manufacturers size chart but far fewer in 265/65

[scarry]

Quick Q, how commonly available is the 265/65-18?

It seens like a really nice compromise in aspect ratio/diameter but from a casual look the 265/60-18 is on every manufacturers size chart but far fewer in 265/65

Probably because the 265/60/18 is OEM size for models in the Paj and Prado range,and some dual cabs.

[rick130]

Probably because the 265/60/18 is OEM size for models in the Paj and Prado range,and some dual cabs.Yep, which is why I'll probably stick with that size but the 265/65 is that damned close to a 265/75-16 in diamater and had that little bit more give in the sidewall.....

[Melbourne Park]

Quick Q, how commonly available is the 265/65-18?

It seens like a really nice compromise in aspect ratio/diameter but from a casual look the 265/60-18 is on every manufacturers size chart but far fewer in 265/65

I decided on getting the BFG KO2 tyres - I had shortened the choice down to those and also the 697s.

The BFGs were more costly, but not by much. I thought the extra cost of the BFG worthwhile.

But the interesting thing was that the price difference on the BFG between the 265/65/18 and the 265/60/18 was I recall $1.80 per tyre. I bought them 7 weeks ago by the way. There is a lot more tyre on a 65 profile than the 60 profile - a lot more height in the wall. A lot more triple layer Kevlar. A lot more contact patch when you let them down (I am unsure yet how far the BFGs will actually lower though - the side wall maybe stiff). But I also thought the higher profile of 65 would be more able to flex than a lower profile, hence they may go lower than the shorter side wall.

The fuel economy on my 2014 D4 HSE did not change towing - a real surprise. Considering that I am going longer distances than the computer and odometer knows, then its actually better value vis a vis fuel

The downside on the 65 profile though is that the factory rear tyre space will not fit a deflated BFG 265/65/18 tyre - so the tyre guys who tried, they said it definitely will not fit. So I carry one on the roof and a standard sized tyre underneath. I don't have a locked rear diff so the smaller diameter should not matter if a replace a tyre, but I will treat that underneath tyre as a run flat. But anyway putting in tyres underneath is dirty work IMO.

The 265/65/18s are not touching either - I also fitted an ARB bar - no winch though. I don't know if that assists not rubbing. Since I tow full lock can be important - but there's no rubbing.

I had Grabbers - 255/55/18s before. But I only had one flat with them - due to a renovation and a roofing nail. I reckon the BFGs would laugh at a roofing nail, but who knows ...

Good luck

[dirvine]

I have BFG KO 265/65/18 and it definately fits underneath if its deflated. The tyre people did not try hard enough. Or if you have the tow hitch connected you will have to take that off. I have about 24K on my tyres now and the spare does not need to be deflated anymore. As to economy etc. My Odometer and trip odometers are 6% less than actual. The Computer LPH kms was never accurate with OEM tyres and now is 2% out from actual. Measurement was done using a seperate GPS and petrol bowser readings. When the tyres were brand new sitting on 100kph via GPS the speedo was actually reading 100pkh. 20,000ks down the road and 100kph via speedo is actual 99.8kph via GPS. I guess this discrepency will become "larger" as the tyre diameter gets smaller.

[rick130]

The local tyre bloke reckons at least one model Colorado now wears the 265/65R18 from the factory.
So it's starting to become a little more common.
He actually had a set of Pirelli's in stock in that size

[Ean Austral]

18' on the D3 so assume its basically the same. 265/60/18 no issues at all but I have a long range tank so the spare is on the rear bar.

Came with 255 /60/18 as standard I think , but been thru plenty of radars and no speeding fines as yet so speedo must be still ok. Plenty of choice with this size as plenty of cars have them as standard. Ranger / Prado / Pajero and a few more from what I can gather.

Cheers Ean

[SJC]

I run 265/60 r18 on my D4.

[Garfield]

I also run KO2's 265/60 r18 on my D4. Have got about 55,000km out of them and probably only a bit over 1/2 worn. I do run them on road at 40 psi cold and regularly rotate them. Minimal road noise for an AT.

[DiscoD4]

I decided on getting the BFG KO2 tyres - I had shortened the choice down to those and also the 697s.

The BFGs were more costly, but not by much. I thought the extra cost of the BFG worthwhile.

But the interesting thing was that the price difference on the BFG between the 265/65/18 and the 265/60/18 was I recall $1.80 per tyre. I bought them 7 weeks ago by the way. There is a lot more tyre on a 65 profile than the 60 profile - a lot more height in the wall. A lot more triple layer Kevlar. A lot more contact patch when you let them down (I am unsure yet how far the BFGs will actually lower though - the side wall maybe stiff). But I also thought the higher profile of 65 would be more able to flex than a lower profile, hence they may go lower than the shorter side wall.

The fuel economy on my 2014 D4 HSE did not change towing - a real surprise. Considering that I am going longer distances than the computer and odometer knows, then its actually better value vis a vis fuel

The downside on the 65 profile though is that the factory rear tyre space will not fit a deflated BFG 265/65/18 tyre - so the tyre guys who tried, they said it definitely will not fit. So I carry one on the roof and a standard sized tyre underneath. I don't have a locked rear diff so the smaller diameter should not matter if a replace a tyre, but I will treat that underneath tyre as a run flat. But anyway putting in tyres underneath is dirty work IMO.

The 265/65/18s are not touching either - I also fitted an ARB bar - no winch though. I don't know if that assists not rubbing. Since I tow full lock can be important - but there's no rubbing.

I had Grabbers - 255/55/18s before. But I only had one flat with them - due to a renovation and a roofing nail. I reckon the BFGs would laugh at a roofing nail, but who knows ...

Good luck

Hi There,

I'm looking to put the same size K02's on the my D4 but the tyre place are telling me they won't fit as they had to make adjustment fitting the 265/60/18 previously but using a 18x9 alloy wheel.

Just wondering what rims you had these on? I'm looking at the tuffant D5 18x8 rim as its got an additional 17mm track width.

Did you have any rubbing on the chassis or front bar? i also have the ARB Bullbar.

Apologies if i haven't posted in the correct place, first time on this forum.

Thanks

[DiscoD4]

My new to me but old D4 acquisition (with LLAMS), is shod with 285/60R18 = 31.5 diameter. Not been off road yet, but fine around town.

275/65R18 is I think 32.1 diameter

Hi There,

Did you get any rubbing with those size tyres when new or did you require any modifications to arches, bumper or chassis that you know of?

That size is my preference but the tyre shop assures me they will not fit!

What rim do you have it on please?

[DiscoD4]

The last three sets have been 285/60/18. I like the size and will continue with it.

However, the first two- Dunlop AT22 and Bridgestone A/T 697s- had only limited rubbing on the guards when articulated. But the current set- Toyo Open Country R/Ts rub a bit more. I've noted a rub on the cable split tube on the inner guard of the front left.

I think two reasons:

1. The Dunlops and B/Stones were second hand (wanted to try the size before purchasing, NB: usually lots of 285/60/18 Dunlop AT22's on Gumtree from LC 200 people ditching for upgrades, I got 6 tyres with 50-60% left for $150.00 the lot) so they had worn some what.

2. The Toyos have a very square tread with aggressive shoulder lugs. Which is the area doing the rubbing on the cable.

Some Comments: The 285/60/18 go well off road. My fuel consumption has increased from the originals. The size should be reasonably available as is a LC standard size. The speedo is fractionally slow (not sure which way you say it) at 100 on the dial I'm doing 102-103.

Hi There,

Did you get any rubbing with those size tyres when new or did you require any modifications to arches, bumper or chassis that you know of?

That size is my preference but the tyre shop assures me they will not fit!

What rim do you have it on please?

[scarry]

I also run KO2's 265/60 r18 on my D4. Have got about 55,000km out of them and probably only a bit over 1/2 worn. I do run them on road at 40 psi cold and regularly rotate them. Minimal road noise for an AT.

Mine seem to be wearing much better than the old BFG KO's seemed to wear.

But they do drone at some speeds,exactly like the old model.

One major advantage of this size is if the vehicle ever drops to its bump stops for whatever reason,it will still be drivable,unlike the higher profile 18" tyres run by some,particularly the 285 sizes.

[gavinwibrow]

Hi There,

Did you get any rubbing with those size tyres when new or did you require any modifications to arches, bumper or chassis that you know of?

That size is my preference but the tyre shop assures me they will not fit!

What rim do you have it on please?



Standard D3/4 LR 18" rim (straight spokes). Yes will just touch inner arch covers on lowest setting when turning, and if I remember Tombie's comment of a few weeks ago they might catch if going onto bump stops (Haven't checked this out yet as travelling away for another month and don't want to kibosh anything).
In short, I'd prefer one size smaller to be sure, to be sure.

[Dagilmo]

Hi There,

Did you get any rubbing with those size tyres when new or did you require any modifications to arches, bumper or chassis that you know of?

That size is my preference but the tyre shop assures me they will not fit!

What rim do you have it on please?

I had the standard 18" LR rim- 5 straight spokes. I didn't mod anything. Rubbed a little here and there. They definitely fit but I can understand why a tyre shop would say they don't. IIRC (were fitted to my now gone D3) the rear of the rear guard lining was the worst spot for rubbing. There wasn't any real issues (just a rub here and there) until i fitted the Toyos with the square and aggressive edge. These just touched the cable on the passenger front the runs along the chassis. This was going to be a problem longer term. I didn't do anything to rectify as I pulled those tyres off when I sold it. I have them in the shed to fit to the D4 when the tyres on the compomotives wear out. I'll have to do something to protect the cable in future.

I liked that size but in hindsight and after using 265/60/18 (I think that's the correct profile) that came on the compomotive and the bump stop issue (though I do have an emergency air kit) I don't think the 285/60 are worth it. Particularly with the Rubbed cable issue. They look good though [biggrin]

[Melbourne Park]

Hi There,

I'm looking to put the same size K02's on the my D4 but the tyre place are telling me they won't fit as they had to make adjustment fitting the 265/60/18 previously but using a 18x9 alloy wheel.

Just wondering what rims you had these on? I'm looking at the tuffant D5 18x8 rim as its got an additional 17mm track width.

Did you have any rubbing on the chassis or front bar? i also have the ARB Bullbar.

Apologies if i haven't posted in the correct place, first time on this forum.

Thanks

Hi,

I have the 18" compomotive wheels.

It's possible to have some very minor rubbing with the tyres set low. I also now have Llams so with the setup to allow the car to go really low (to aid getting my old mother into the car). Minor rubbing though, somewhere near the rear of the front wheel arch. Under full lock.

I am carrying a tyre on the roof rack but the spare is a different tyre; the fitters said it would not fit. I could not the point in squeezing a tyre in when if I had a flat in dirty conditions it might be a task getting the flat tyre into the spare's wheel well; so if trouble comes I'll first use the one on the roof and put the flat tyre and wheel up there first. I'm also carrying 2nd van tyre (no wheel) on the roof rack.

I'm in QLD camping at the moment but have a cellular signal. Hence the tyres on the roof. Just in case.

Cheers
Doug